1115420377 has 2 divisors, whose sum is σ = 1115420378. Its totient is φ = 1115420376.

The previous prime is 1115420297. The next prime is 1115420381. The reversal of 1115420377 is 7730245111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1107292176 + 8128201 = 33276^2 + 2851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115420377 - 2²³ = 1107031769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115420477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557710188 + 557710189.

It is an arithmetic number, because the mean of its divisors is an integer number (557710189).

Almost surely, 2^1115420377 is an apocalyptic number.

It is an amenable number.

1115420377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115420377 is an equidigital number, since it uses as much as digits as its factorization.

1115420377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1115420377 is about 33397.9097699242. The cubic root of 1115420377 is about 1037.0814304580.

Adding to 1115420377 its reverse (7730245111), we get a palindrome (8845665488).

The spelling of 1115420377 in words is "one billion, one hundred fifteen million, four hundred twenty thousand, three hundred seventy-seven".